Telescope framing device



Sep 5, 1931- L. s. FRAPPIER ET AL I 1,323,355

' TELESCOPE FRAMING DEVICE Filed June 29, 1929 7 Sheets-Sheet l 'FIG.|.

ATTO-RN EY vSept. 15, 1931.

L. S. FRAPPIER ET AL TELESCOPE FRAMING DEVI CE Filed June 29. 1929 '7 Sheets-Sheet 2 FIG. 2.

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m dz ATTOP-QNEY S p 1931- L. s. FRAPPIER ET AL 1,323,355

TELESCOPE FRAMING DEVI CE Filed June 29, 1929 7 Sheets-Sheet 7 74 92 (Ill 0 23 35 FIG I2 22 VII/l/I/l/l/l/l/ 9 90 7 94 i l i g i Patented Sept. 15, 1 931 UNITED STATES PATENT OFFICE LOUIS S IMON FRAPPIER AN D EWALD BOEOKING,, OF BROOKLYN, NEW YORK, ASSIGNORS TO INTERNATIONAL PROJECTOR CORPORATION, OF NEW YORK, N. Y., A CORPORA- TION OF DELAWARE Application filed June 23,

This invention relates to projection machines; and more particularly to a machine.

having mechanism for scanning a photographic sound record. vides for supporting a. microscope inthe path of a scanning ray in such position that the ray can be observed while adjustments are being made to secure the proper characteristics thereof. Y

An object of the invention isto provide a simple support for the microscope which may be readily. secured to the machine and held in a fixed position while the adjustments are being made.

Another object-is to utilize existing portions of the machine for supporting the microscope.

A still further object is to provide a sup- .port for the microscope which can be utiand original features of construction and combinations of parts hereinafter set forth and claimed.

Although the novel features which are believed to be characteristic of this invention will be particularly pointed out in the claims appended hereto, the invention itself. as to its objects and advantages, the mode of its operation and the manner of its organization may be better understood by referring to the following description taken in connection with the accompanying drawings forming a part thereof. in which Fig. 1 is an elevation of a projection head showing the location of the various parts;

Fig. 2- is an elevation of the sound reproducing apparatus showing the telescope and photo-electric cell;

The invention pro TELESCOPE FRAMING DEVICE 1929. Serial No. 374,761.

Fig. 3 is a plan view of the sound reproducing apparatus and associated mechanism;

Fig. 4 is a sideelevation of the filin gate in closed position;

Fig. 5 is a section taken on the line 55 of Fig. 3;

Fig. 6 is an elevation partly in section of the aperture plate and microscope support;

F ig. 7 is a section takenon the line 77 of Fig. 6 showing the aperture plate;

Fig. 8 is a plan view partly in section of the microscope and supporting mechanism;

F ig.-9 is a section taken. on the line 9-9 of Fig. 8;

Fig. 10 is a side elevation of the film gate in open position showing the microscope supported by the aperture plate;

Fig. 11 is an enlarged detail view of the film gate in closed operating position;

Fig. 12 is a plan view of the microscope showing the mechanism for supporting the same from the aperture plate; and

Fig. 13 is an enlarged detail of the sup porting bracket.

Like reference characters denote like parts in the several figures of the drawings.

In the following description and in the claims parts will be identified by specific names for convenience, but they are intended to be as generic in their application to similar parts as the art will permit.

Referring more particularly to the drawings, the invention is shown as applied to a projection head (Fig. 1) including an upper film magazine 10, upper film gate 11, sound film gate 12 and associated sprockets for feeding a film successively over said film gates. The apparatus is adapted to project a picture on a distant screen and at the same time scan a photographic sound record which may be incorporated on the projection film. It is to be understood, however, that the sound apparatus described herewith is not limited to use with a projection machine but is only shown associated therewith by way of illustrati'on.

A suitable apparatus for directing light rays upon a sound record is shown in Fig. 2 as including a pair of light sources 20 which may be selectively brought into alignment with telescope 21. Said telescope receives rays from light source 20 and directs said rays on aperture plate 22. When film gate 12 is closed (Fig. 4) film 13 isheld in engage- 'ment with said aperture plate and is passed thereover by means of continuous sprocket 23 which is driven by any suitable mechanism.

, copending application of Frappier & Boecking, Serial No. 303,162,-fil ed August 31 1928, for improvements in projection machine.

which is held in engagement w1th the aper- Film gate 12 comprises a pressureshoe 30 ture plate and pressure shoes 31 and 32 which are held in engagement with continuous sprocket 23 and 'idler sprocket 33 respectively." These members are supported on a bracket 34 which is dovetailed for sliding movement on wall 35 forming a portion of the closure for the photoelectric cell compartment 25. i For this purpose member 34- is provided with a groove which cooperates with a tongue 36 on sald wall. Suitable locking means such as grooved rod 37-may be provided for holding the parts in their desired position. A handle 38 is associated with the film gate for controlling the position thereof. Film gate 12 may be removed after the gate has been brought into open position as shown in Fig. 10 by releasing the locking means 37 and sliding the bracket 34 over tongue 36.

The microscope comprises a tube 40 (Fig. 8) carrying the usual lenses 41 and supported in a collar 42 which is secured in housing 43 by suitable means such as set screw 44. Housing 43 is secured to strap 45 (Fig. 9) by a screw 46 and is slidably secured to a bracket 50 by set screw 51 which is threaded in said bracket. The vertical position of strap 45 is controlled by thumb screw 54 which is threaded into horizontal ear 55 formed on said strap and contacts with the upper surface of bracket 50. Strap 45 is provided with an elongated hole 52 to permit vertical adjustments with respect to screw 51 and bracket 50.

Bracket 50 is provided with a suitable groove to engage tongue 36 on wall 35 and may be slidably secured thereon. Grooved rod 56 is held in a suitable recess in bracket 50 and is provided with a down-turned handle 57 (Fig.9) through which screw 58 is threaded, bearing against a shoulder 59 on bracket 50 for rotatably moving rod 56 and bringing the notched portion thereof into engagement with tongue 36.

Housing 43 is provided with a tubular bore 60 having openings 61 and 62 communicating with telescope 40 and aperture 64 of aperture plate 22 respectively. A. barrel 65 (Figs.

5 and 6) is formed to fit within bore 60 of housing 43. Said barrel is provided with upper and lower bearing sections 66 and 67 respectively, and a triangular prism support 68 (Figs. 5 and 8) positioned therebetween. Prism 69 may be secured to said prism support by means of straps 70 which engage said prism and are secured to said support by screws 71.

Housing 43 is formed of a suitable size to engage film guides 73 of aperture plate 22 when the apparatus is in operative position. For securing a fine adjustment of bracket'50 with respect to tongue 36 there is provided a screw 80 (Fig. 8) which is threaded into said bracket and is provided with a head 81 which is brought into engagement with tongue 36.

Barrel 65 is provided with a knurled ex-' tension 75-to provide a hand grip for making the necessary adjustments. Said barrel is also provided with a pair of oppositely disposed shoulders 76 engaging screws 77 .which are held in housing 43 whereby the barrel is secured in the desired adjustment. A slight rotational movement of said barrel may be eitected by the proper manipulation 'of screws 77- whereby pressure is exerted on one of said shoulders 76 and pressure on the other of said shoulders is relieved.

To align the microscope with the aperture plate, the film gate is first removed in a manner pointed out above, and housing 50 is brought into sliding engagement with tongue 36, and is adjusted by screws 80 ;-until the proper alignment of aperture 63 and aperture 64 is obtained. The bracket may then be locked by rotating handle 57 to bring rod 56 into engagement with said tongue. Vertical adjustment of housing 43 is obtained by loosening set screw 51 and manipulating thumb screw 54 so that the required alignment is obtained. Barrel 65 may then be rotatably adjusted by means of screws 77 to so position the apparatus that light rays passing through aperture 64 are deflected by means of prism 69 and focused through lenses 41 in telescope 40. The light rays may accordingly be observed through said microscope while the necessary adjustments thereof are being made. These adjustments will ordinarily involve the positioning of light source 20 in the proper alignment with telescope 21 and will be required only once for each light source. After the various light sourceshave been adjusted the microscope may be removed by rotating rod 56 and thereby releasing bracket 50 from tongue 36, after which the film gate may be returned to 1ts operative position.

A modified form of support for the microscope 40 which does not require the removal of film gate 12 is shown in Figs. 10, 12 and 13. This support comprises a bracket (Fig. 12) which is provided with a horizontal extension 92 which is adapted to bear against film guides 7 3 and 74 of aperture plate 22. Bracket 90 is threaded to barrel 93 which is adapted to engage aperture 64 in aperture plate 22. Bracket 90 is extended to form a sleeve 9% in which microscope 40 may be secured and is provided with a suitable clamp 95 for securing prism 69 thereto.

To apply the microscope to the aperture plate it is only necessary to open film gate 12 and remove telescoping members 96 from telescope 21. B acket 90 is then brought into the position shown in Fig. 12 and barrel 93 turned to bring the same into firm engagement with aperture plate 22. Extension 92 of bracket 90 contacting with film guides 73 and Ti serves to secure the microscope in position.

It is to be noted that in the apparatus above described the microscope may be readily brought into operative position for ad-' justing the rays of the scanning light and is supported in operative position while such adjustment is being made. By mounting the microscope 011 the support for the film gate [the use of a separate device for supporting the microscope-is avoided. In' the arrangement shown in Figs. 10, 12and 13 the microscope may be adjusted without removing the film gate and is secured directly to the aperture plate itself. This type of support may be (lQ$11fil)l8 under certain conditions and may be used with film gates which are not.

readily removable.

\Vhile certain novel features of the invention have been shownand described and are pointed out in the annexed claims, it will be understood that various omissions, substitutions and changes in the forms and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention.

'hat is claimed is:

1. In a machine for producing sound from a photographic sound record, means for producing a scanning light, a film gate for directing said sound record past said light, a support therefor, and-a microscope for facilitating adjustment of said light, means for supporting said microscope comprising a housing having an aperture therein, a prism supporting means mounted adjacent said aperature for changing the angleof the scanning light, and means for mounting said housing upon said film gate support interchangeably with said film gate.

2. In combination with a photographic sound reproducing mechanism including a light source, aperture plate and photoelectric cell, a microscope for adjusting said scannin ra a su ort for said film "ate and a microscope for facilitating adjustment of said ray, and means for supporting said microscope upon said film gate support interchangeably with said film gate.

i. In combination with an apparatus for scanning a photographic sound record including a film gate and a support therefor, a microscope, .a housing carrying said microscope. a light deflecting member mounted in. said housing and adapted to direct the scanning light into said microscope, means for mounting said microscope on said film gate support comprising a bracket slidably secured to said support, a strap slidably secured to said bracket and carrying said housing. and means for causing relative adjustment between said strap and said bracket and between said bracket and said support.

5. In combination with a microscope, a housing supporting said microscope, means on said housing for supporting a prism in a position to deflect rays of light at right angles into said microscope, a strap carrying said housing, a bracket, means for slidably mounting said strap on said bracket for vertical movement, a support, means for slidably mounting said bracket on said support for horizontal movement, and means for angularly adjusting said prism support with respect to the axis of said telescope.

6. In a machine for scanning a photographic sound record, an aperture plate for directing a scanning light onto said sound record, a microscope. means for mounting said microscope with its axis at substantially right angles to the scanning light. a light deflecting member for deflecting said scanning light along the axis of said microscope. means for mounting said microscope adjacent said aperture plate, and means for adjusting said microscope vertically and horizontally with respect thereto for bringing said light deflecting means into alignment with said scanning light.

7. In a machine for scanning a photographic sound record, an aperture plate for directing a scanning light onto said record.

a microscope for viewing said rays, means for supporting said microscope from said aperture plate comprising a bracket supporting said microscope, and means for clamping said bracket to said aperture plate.

8. In amachine for scanning a photo graphic sound record, an aperture plate for 5 directing a scanning light on to said record, amicroscope for viewing said rays, means for supporting said microscope from said aperture plate comprising a bracket supporting said microscope, and means for clamping said bracket to said aperture plate, said clamping means comprising a tubular member adapted to bepositioned in the path of the scanning rays and to permit passage of said rays therethrough. 9. In combination with a motion picture projection machine,a device associated therewith for scanning a photographic sound record, inechanism for facilitating adjustment of said scanning mechanism, a film gate for directing said photographic record past said scanning mechanism, and a single support carrying interchangeably said adjusting mechanism and said film gate.

LOUIS S. FRAPPIER. EWALD BOECKING. 

